A geothermal well heats a house. A glycol liquid with a specific heat of 0.9 Btu/lb-°F changes temperature from 48°F to 64°F in the well. If 72 lbs/min of glycol flow through the s?ystem, how much heat is extracted from the well?
Fill in the blank(s) with the appropriate word(s).
1,036.8 Btu/min
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Most of the cotton produced in the American South after the invention of the cotton gin was
A. produced by free labor. B. sold to England for production of textiles in their mills. C. grown on the tidewater plains. D. consumed by the southern textile industry. E. of the long-staple variety.
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? Identify and state the historical significance of the American or Know-Nothing party.
What will be an ideal response?
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Impedance is the combined effect of:
A) Potential and current. B) Resistance, inductive reactance, and capacitive reactance. C) Wattage and amperage. D) DC resistance and AC resistance.
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